Potential of VIS-NIR spectroscopy to characterize and discriminate topsoils of different soil types in the Triffa plain (Morocco)
This study aims to identify the influence of soil organic matter (OM) content and calcium carbonates (CaCO3) on soil reflectance and select the optimum spectral bands for discriminating between topsoils of different soil types situated in the irrigated perimeter of the Triffa plain (Morocco) using V...
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Soil Science Society of Poland
2019-03-01
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| Series: | Soil Science Annual |
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| Online Access: | http://www.degruyter.com/view/j/ssa.2019.70.issue-1/ssa-2019-0007/ssa-2019-0007.xml?format=INT |
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| author | Lazaar Ayoub Mahyou Hamid Gholizadeh Asa Elhammouti Kamal Bilal Muhammad Andich Karim Roger Jean Michel Monir Abdelilah Kouotou Daouda |
| author_facet | Lazaar Ayoub Mahyou Hamid Gholizadeh Asa Elhammouti Kamal Bilal Muhammad Andich Karim Roger Jean Michel Monir Abdelilah Kouotou Daouda |
| author_sort | Lazaar Ayoub |
| collection | DOAJ |
| description | This study aims to identify the influence of soil organic matter (OM) content and calcium carbonates (CaCO3) on soil reflectance and select the optimum spectral bands for discriminating between topsoils of different soil types situated in the irrigated perimeter of the Triffa plain (Morocco) using VIS-NIR reflectance spectroscopy. Soil samples were collected from the plow layer in 26 sampling sites. The spectral measurements were conducted in the field using an ASD Fieldspec portable spectroradiometer (350–2500 nm), while the soil samples were analyzed in the laboratory. The spectral data were pre-processed to remove the noise effects and then analyzed with the CovSel (selected covariance) method, validated by linear discriminant analysis in order to select the most optimal spectral variables to discriminate between topsoils of different soil types in the plain. The results of the soils reflectance curves showed that low reflectance intensity marked the soils with high OM contents throughout the VIS spectrum. The influence of the soil OM content was very apparent in the VIS range (between 580–750 nm). Regarding the CaCO3 content, it was noted that the soil samples with a high percentage of CaCO3 increase the reflectance in all spectral domains situated between 350 and 2500 nm. The spectral bands of 1999, 686, 1280, 2340 and 1951 nm were the most optimal for the soil discrimination in the Triffa plain. This study concluded that the VIS-NIR spectroscopy demonstrates an excellent ability to characterize and discriminate between topsoils in the Triffa plain. |
| first_indexed | 2024-12-11T17:28:14Z |
| format | Article |
| id | doaj.art-7b33ed0836334f03bb6e6d45fdc126a7 |
| institution | Directory Open Access Journal |
| issn | 2300-4975 |
| language | English |
| last_indexed | 2024-12-11T17:28:14Z |
| publishDate | 2019-03-01 |
| publisher | Soil Science Society of Poland |
| record_format | Article |
| series | Soil Science Annual |
| spelling | doaj.art-7b33ed0836334f03bb6e6d45fdc126a72022-12-22T00:56:55ZengSoil Science Society of PolandSoil Science Annual2300-49752019-03-01701546310.2478/ssa-2019-0007ssa-2019-0007Potential of VIS-NIR spectroscopy to characterize and discriminate topsoils of different soil types in the Triffa plain (Morocco)Lazaar Ayoub0Mahyou Hamid1Gholizadeh Asa2Elhammouti Kamal3Bilal Muhammad4Andich Karim5Roger Jean Michel6Monir Abdelilah7Kouotou Daouda8Laboratory of Applied Geosciences (LGA), Department of Geology, Faculty of Sciences, Mohammed first University, Oujda, MoroccoNational Institute of Agronomic Research, Oujda, MoroccoDepartment of Soil Science and Soil Protection, University of Life Sciences, Prague, Czech RepublicLaboratory of Applied Geosciences (LGA), Department of Geology, Faculty of Sciences, Mohammed first University, Oujda, MoroccoSchool of Marine Science, Nanjing University of Information Science and Technology, ChinaNational Institute of Agronomic Research, Oujda, MoroccoDepartment of Ecotechnologies, National Research Institute of Science and Technology for Environment and Agriculture, Montpellier, FranceDepartment of Mathematics, EDP and Scientific computing Team, Moulay Ismail University, Meknes, MoroccoDepartment of Inorganic Chemistry, University of Yaoundé I, Yaoundé, CameroonThis study aims to identify the influence of soil organic matter (OM) content and calcium carbonates (CaCO3) on soil reflectance and select the optimum spectral bands for discriminating between topsoils of different soil types situated in the irrigated perimeter of the Triffa plain (Morocco) using VIS-NIR reflectance spectroscopy. Soil samples were collected from the plow layer in 26 sampling sites. The spectral measurements were conducted in the field using an ASD Fieldspec portable spectroradiometer (350–2500 nm), while the soil samples were analyzed in the laboratory. The spectral data were pre-processed to remove the noise effects and then analyzed with the CovSel (selected covariance) method, validated by linear discriminant analysis in order to select the most optimal spectral variables to discriminate between topsoils of different soil types in the plain. The results of the soils reflectance curves showed that low reflectance intensity marked the soils with high OM contents throughout the VIS spectrum. The influence of the soil OM content was very apparent in the VIS range (between 580–750 nm). Regarding the CaCO3 content, it was noted that the soil samples with a high percentage of CaCO3 increase the reflectance in all spectral domains situated between 350 and 2500 nm. The spectral bands of 1999, 686, 1280, 2340 and 1951 nm were the most optimal for the soil discrimination in the Triffa plain. This study concluded that the VIS-NIR spectroscopy demonstrates an excellent ability to characterize and discriminate between topsoils in the Triffa plain.http://www.degruyter.com/view/j/ssa.2019.70.issue-1/ssa-2019-0007/ssa-2019-0007.xml?format=INTspectroscopylinear discriminant analysistopsoilsoil discriminationsoil reflectance |
| spellingShingle | Lazaar Ayoub Mahyou Hamid Gholizadeh Asa Elhammouti Kamal Bilal Muhammad Andich Karim Roger Jean Michel Monir Abdelilah Kouotou Daouda Potential of VIS-NIR spectroscopy to characterize and discriminate topsoils of different soil types in the Triffa plain (Morocco) Soil Science Annual spectroscopy linear discriminant analysis topsoil soil discrimination soil reflectance |
| title | Potential of VIS-NIR spectroscopy to characterize and discriminate topsoils of different soil types in the Triffa plain (Morocco) |
| title_full | Potential of VIS-NIR spectroscopy to characterize and discriminate topsoils of different soil types in the Triffa plain (Morocco) |
| title_fullStr | Potential of VIS-NIR spectroscopy to characterize and discriminate topsoils of different soil types in the Triffa plain (Morocco) |
| title_full_unstemmed | Potential of VIS-NIR spectroscopy to characterize and discriminate topsoils of different soil types in the Triffa plain (Morocco) |
| title_short | Potential of VIS-NIR spectroscopy to characterize and discriminate topsoils of different soil types in the Triffa plain (Morocco) |
| title_sort | potential of vis nir spectroscopy to characterize and discriminate topsoils of different soil types in the triffa plain morocco |
| topic | spectroscopy linear discriminant analysis topsoil soil discrimination soil reflectance |
| url | http://www.degruyter.com/view/j/ssa.2019.70.issue-1/ssa-2019-0007/ssa-2019-0007.xml?format=INT |
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